arch/x86/include/asm/traps.h

   1 #ifndef _ASM_X86_TRAPS_H
   2 #define _ASM_X86_TRAPS_H
   3
   4 #include <linux/context_tracking_state.h>
   5 #include <linux/kprobes.h>
   6
   7 #include <asm/debugreg.h>
   8 #include <asm/siginfo.h>                        /* TRAP_TRACE, ... */
   9
  10 #define dotraplinkage __visible
  11
  12 asmlinkage void divide_error(void);
  13 asmlinkage void debug(void);
  14 asmlinkage void nmi(void);
  15 asmlinkage void int3(void);
  16 asmlinkage void xen_debug(void);
  17 asmlinkage void xen_int3(void);
  18 asmlinkage void xen_stack_segment(void);
  19 asmlinkage void overflow(void);
  20 asmlinkage void bounds(void);
  21 asmlinkage void invalid_op(void);
  22 asmlinkage void device_not_available(void);
  23 #ifdef CONFIG_X86_64
  24 asmlinkage void double_fault(void);
  25 #endif
  26 asmlinkage void coprocessor_segment_overrun(void);
  27 asmlinkage void invalid_TSS(void);
  28 asmlinkage void segment_not_present(void);
  29 asmlinkage void stack_segment(void);
  30 asmlinkage void general_protection(void);
  31 asmlinkage void page_fault(void);
  32 asmlinkage void async_page_fault(void);
  33 asmlinkage void spurious_interrupt_bug(void);
  34 asmlinkage void coprocessor_error(void);
  35 asmlinkage void alignment_check(void);
  36 #ifdef CONFIG_X86_MCE
  37 asmlinkage void machine_check(void);
  38 #endif /* CONFIG_X86_MCE */
  39 asmlinkage void simd_coprocessor_error(void);
  40
  41 #ifdef CONFIG_TRACING
  42 #define trace_stack_segment stack_segment
  43 #define trace_divide_error divide_error
  44 #define trace_bounds bounds
  45 #define trace_invalid_op invalid_op
  46 #define trace_device_not_available device_not_available
  47 #define trace_coprocessor_segment_overrun coprocessor_segment_overrun
  48 #define trace_invalid_TSS invalid_TSS
  49 #define trace_segment_not_present segment_not_present
  50 #define trace_general_protection general_protection
  51 #define trace_spurious_interrupt_bug spurious_interrupt_bug
  52 #define trace_coprocessor_error coprocessor_error
  53 #define trace_alignment_check alignment_check
  54 #define trace_simd_coprocessor_error simd_coprocessor_error
  55 #define trace_async_page_fault async_page_fault
  56 #define trace_page_fault page_fault
  57 #endif
  58
  59 dotraplinkage void do_divide_error(struct pt_regs *, long);
  60 dotraplinkage void do_debug(struct pt_regs *, long);
  61 dotraplinkage void do_nmi(struct pt_regs *, long);
  62 dotraplinkage void do_int3(struct pt_regs *, long);
  63 dotraplinkage void do_overflow(struct pt_regs *, long);
  64 dotraplinkage void do_bounds(struct pt_regs *, long);
  65 dotraplinkage void do_invalid_op(struct pt_regs *, long);
  66 dotraplinkage void do_device_not_available(struct pt_regs *, long);
  67 dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
  68 dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
  69 dotraplinkage void do_segment_not_present(struct pt_regs *, long);
  70 dotraplinkage void do_stack_segment(struct pt_regs *, long);
  71 #ifdef CONFIG_X86_64
  72 dotraplinkage void do_double_fault(struct pt_regs *, long);
  73 asmlinkage struct pt_regs *sync_regs(struct pt_regs *);
  74 #endif
  75 dotraplinkage void do_general_protection(struct pt_regs *, long);
  76 dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
  77 dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
  78 dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
  79 dotraplinkage void do_alignment_check(struct pt_regs *, long);
  80 #ifdef CONFIG_X86_MCE
  81 dotraplinkage void do_machine_check(struct pt_regs *, long);
  82 #endif
  83 dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long);
  84 #ifdef CONFIG_X86_32
  85 dotraplinkage void do_iret_error(struct pt_regs *, long);
  86 #endif
  87
  88 static inline int get_si_code(unsigned long condition)
  89 {
  90         if (condition & DR_STEP)
  91                 return TRAP_TRACE;
  92         else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
  93                 return TRAP_HWBKPT;
  94         else
  95                 return TRAP_BRKPT;
  96 }
  97
  98 extern int panic_on_unrecovered_nmi;
  99
 100 void math_emulate(struct math_emu_info *);
 101 #ifndef CONFIG_X86_32
 102 asmlinkage void smp_thermal_interrupt(void);
 103 asmlinkage void smp_threshold_interrupt(void);
 104 asmlinkage void smp_deferred_error_interrupt(void);
 105 #endif
 106
 107 extern void ist_enter(struct pt_regs *regs);
 108 extern void ist_exit(struct pt_regs *regs);
 109 extern void ist_begin_non_atomic(struct pt_regs *regs);
 110 extern void ist_end_non_atomic(void);
 111
 112 #ifdef CONFIG_VMAP_STACK
 113 void __noreturn handle_stack_overflow(const char *message,
 114                                       struct pt_regs *regs,
 115                                       unsigned long fault_address);
 116 #endif
 117
 118 /* Interrupts/Exceptions */
 119 enum {
 120         X86_TRAP_DE = 0,        /*  0, Divide-by-zero */
 121         X86_TRAP_DB,            /*  1, Debug */
 122         X86_TRAP_NMI,           /*  2, Non-maskable Interrupt */
 123         X86_TRAP_BP,            /*  3, Breakpoint */
 124         X86_TRAP_OF,            /*  4, Overflow */
 125         X86_TRAP_BR,            /*  5, Bound Range Exceeded */
 126         X86_TRAP_UD,            /*  6, Invalid Opcode */
 127         X86_TRAP_NM,            /*  7, Device Not Available */
 128         X86_TRAP_DF,            /*  8, Double Fault */
 129         X86_TRAP_OLD_MF,        /*  9, Coprocessor Segment Overrun */
 130         X86_TRAP_TS,            /* 10, Invalid TSS */
 131         X86_TRAP_NP,            /* 11, Segment Not Present */
 132         X86_TRAP_SS,            /* 12, Stack Segment Fault */
 133         X86_TRAP_GP,            /* 13, General Protection Fault */
 134         X86_TRAP_PF,            /* 14, Page Fault */
 135         X86_TRAP_SPURIOUS,      /* 15, Spurious Interrupt */
 136         X86_TRAP_MF,            /* 16, x87 Floating-Point Exception */
 137         X86_TRAP_AC,            /* 17, Alignment Check */
 138         X86_TRAP_MC,            /* 18, Machine Check */
 139         X86_TRAP_XF,            /* 19, SIMD Floating-Point Exception */
 140         X86_TRAP_IRET = 32,     /* 32, IRET Exception */
 141 };
 142
 143 #endif /* _ASM_X86_TRAPS_H */